pi-4QPSK

OFDM系统的LS和DFT信道估计的算法分析比较(LS and DFT OFDM system channel estimation algorithm analysis and comparison)

its about gsm based appliance control drawn in DXP PROTEL

使用verilog实现全数字16QAM调制器，载波频率1MHZ，数据比特流的速率为100Kbps,(the modulation of 16QAM based on FPGA)

delphi开发的基于TCP协议的文件传输程序。包含服务器端和客户端程序，可以互相传送。(delphi development based on the TCP protocol file transfer program. Includes server and client program, you can send each other.)

生成圆锥共形阵阵元位置，改变顶角，圆锥高度，阵元间距(Generate the position of conical conformal array elements, change the apex angle, the height of cone and the spacing of array elements)

voice transformation good algo

First, when the inter-user distance d is small, the SNR for D2D communication is high, and hence there are sufficient number of bits for high quality CSI exchange.

说明：  QPSK通过瑞利信道的MATLAB仿真 包括高斯白噪声和瑞丽衰减信道(QPSK_Rayleigh fading Both the AWGN channel and Rayleigh fading channel)

介绍了在移动通信系统中对抗多径衰落的一种重要技术——分集接收技术，并分析了各种分集、合并技术的优缺点，提出了RAKE接收机的概念和结构。 (Against multipath fading important technology- diversity reception technology in the mobile communication system, and analyze the advantages and disadvantages of the various sub-sets, merging technology RAKE receiver concepts and structures.)

该程序给出了LDPC编译码程序的经典算法，即BP算法，性能比较好(The program gives the classic algorithm LDPC decoding procedures, namely BP algorithm, the performance is better)